Technical Specifications

Flow sensors

Uplink frequency 30 to 60 kHz
Range to vessel up to 2500 m*
Data update rate Along/across speed: trawl speed and grid max. every 14 sec. - Symmetry: max. every 28 sec. - Pitch&Roll: 8 to 15 sec. (depends on settings)
Depth range up to 1800 m
Depth resolution 0.1m with 0.1% accuracy
Pitch angle ±90°
Roll angle ±180°
Pitch & roll accuracy ±0.1°
Temp measurement range -5° C to +25° C
Temp accuracy ±0.1° C
Across speed range Up to ± 3 knots
Along speed range Up to ± 6 knots
Speed resolution 0.1 knot
Across and along speed accuracy ±0.1 knot
Typical battery life Up to 80 hours**
Charging time Standard: 8-12 hours †
Fast charge: 4 hours
Battery type Lithium-Ion
Weight of Trawl Speed and Symmetry sensors (sensor + protection cage) in air 22.4 kg
Weight of Trawl Speed and Symmetry sensors (sensor + protection cage) in water 13 kg
Weight of Grid sensor and protection cage in air 19 kg
Weight of Grid sensor and protection cage in water 11.3 kg
Warranty 2 years (Sensor & Battery) ‡

Speed Explorer

Uplink frequency 30 to 60 kHz
Range to vessel up to 2500 m*
Sounder broadband frequency Configurable between 120-210 kHz
Sounder range 5 to 160 m
Data update rate Depth: 1-8 sec. - Temp/Battery/Altitude/Pitch&Roll: every 6 sec. - Along/Across speed: every 7 sec.
Echogram update rate Up to 3 images per second
Depth range up to 1800 m
Pitch angle ±90°
Roll angle ±180°
Pitch & roll accuracy ±0.1°
Depth resolution 0.1m with 0.1% accuracy
Temp measurement range -5° C to +25° C
Temp accuracy ±0.1° C
Across speed range Up to ± 3 knots
Along speed range Up to ± 10 knots
Speed resolution 0.1 knot
Across and along speed accuracy ±0.1 knot
Typical battery life Up to 50 hours**
Charging time Standard: 8-12 hours †
Fast charge: 4 hours
Battery type Lithium-Ion
Weight of sensor + protection cage in air 22.4 kg
Weight of sensor + protection cage in water 13 kg
Warranty 2 years (Sensor & Battery) ‡

*Reference only. Depends on functions enabled. / † Based on average charging time. / ‡ Marport Standard Marine Limited Warranty / **Depends on sensor uplink power.

Speed Explorer Beamwidths

Beamwidths for Uplink pings:
Beamwidth @ 35 kHz @ 50 kHz @ 60 kHz
-3dB 46° 40° 30°
Beamwidths for Up and Down pings:
Beamwidth @ 125 kHz @ 160 kHz @ 200 kHz
-3dB 26° 24° 22°

Outline Dimensions

Trawl Speed, Symmetry and Speed Explorer sensors



Speed Explorer with a board for inverted installation



Grid sensor